Commonly, a voucher is a document that shows goods have bought or services have been rendered, authorizes payment, and indicates the ledger account(s) in which these transactions have to be recorded.
It was the first product in a major class of drugs for depression called selective serotonin reuptake inhibitors. Prozac was first introduced to the U.S. market in January 1988, and it gained its most prescribed status within two years.
I was prescribed Prozac (fluoxetine) in 1989, the same year that it was launched as an antidepressant and licensed to use in the treatment of anxiety disorders. My anxiety didn't improve and I started suffering from insomnia and head symptoms, including headaches and a 'buzzing sensation'.